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Breeding Journal, Species: Thor amboinensis
Monday, February 10, 2014 9:33 AM
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Breeding Journal DataSheet
This first post should be updated regularly to include new information as events take place or changes are made to your system General Species: Thor amboinensis Social Structure: Three females, one male Size of Individuals: ~1/2 inch Age of Individuals: Unknown Date added to Tank: January 2014 Broodstock Tank Details Size of Tank: Mesh breeder basket, 6" x 5" x 5" in a 20 gallon Substrate Details: None Filtration Details: Live sand, live rock, protein skimmer, bioballs Water Changes: As needed Water Temperature: ~80F Lighting: Fluorescent strip light Lighting Cycle: 6AM to 9PM Other Tank Inhabitants: None in the breeder box Broodstock Feeding Details Food Types: Pellets, frozen mash, frozen enriched artemia Feeding Schedule: At least twice daily Spawning Details Date of First Spawn: 1-26-2014 (The first hatch is from a spawn that occurred before purchase, so this date is an ESTIMATE) Spawn Time of Day: Assumed after lights out, but not witnessed so not known Dates of Consecutive Spawns: 4-1-2014 Courtship Details: None noted/seen Egg Size: Small, less than 1mm Egg Color: Not seen since they are under the pleopods, but look dark Egg Count: ~50, maybe 100, although I don't usually get that many in the collector. Not actually sure of the count, 50 is an estimate based on how many I end up with. Hatch Details Hatch Date: 2-9-2014, 3-31-2014, 4-13-2014 Hatch Time of Day: After lights out # Days after Spawn: ~14 days Larvae Description: brown, in a loose "V" shape, one pair of legs longer than the others Larval Tank Details Temperature: ~80F Size of Larval Tank: 3L water bottle, inverted Substrate Details: None Other Tank Decor: None Filtration Details: Live phyto Lighting: Fluorescent strip light Lighting Cycle: 6AM to 9PM Water Changes: Every two or three days Larval Feeding Details Food Types: nhbbs Feeding Schedule: constant Metamorphosis/Settlement Date of Settlement Start: 3-10-2014 Days after Hatch: 28 Date of Settlement End: 3-12-2014 Description of Fry: Small shrimp with posture similar to adults, reddish-brown in color
Grow-Out Tank Details Temperature: ~80F Size of Grow-Out Tank: Mesh breeder basket 5" x 6.75" x 5.25" in a 27 gallon Substrate Details: None in the breeder basket, sand in the 27g Other Tank Decor: Some macroalgae in the breeder basket Filtration Details: Live rock, live sand, protein skimmer Lighting: Reefbreeders LED Lighting Cycle: 6AM to 8PM Water Changes: ~20% every two weeks Size at Transfer: ~4mm Age at Transfer: ~30 days post hatch, few days post settlement Grow-Out Feeding Details Food Types: Crushed flake and pellet, Golden Pearls Feeding Schedule: 1-3 times per day Additional Information (No Pictures or Videos in the Section Please) Miscellaneous Information: You will be required to provide photographic evidence in this thread of each event submitted for the MBI Program.
If your thread does not contain these photos the MBI Committee will not be able to approve your reports.
<message edited by shannpeach on Wednesday, May 7, 2014 8:15 AM>
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Re: Breeding Journal, Species: Thor amboinensis
Monday, February 10, 2014 9:41 AM
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I think this hatch is from a female that had eggs at purchase since the other female I have hasn't been with a male for a few weeks (he disappeared). Some pics of the large female (the one with the eggs):    I will get pics of the other adults and also some larval pics tonight. The snagger didn't catch very many larvae :/ Maybe next time I will remove the female and put her in a hatching chamber.
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Re: Breeding Journal, Species: Thor amboinensis
Monday, February 10, 2014 10:39 PM
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All three shrimp together: 
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Re: Breeding Journal, Species: Thor amboinensis
Tuesday, February 11, 2014 8:27 AM
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There was a molt in the breeder basket so I am hoping there was also a spawn. I will have to check very closely with a flashlight sometime this week. The eggs are super hard to see on these guys! Day 1 larval pics:     When I got home yesterday several (most?) were floating on the surface, similar to how the A. armatus larvae sometimes do. I pulled one and it had an air bubble stuck on it (the third pic) so I essentially just kept pushing the larvae down until they stopped floating. I didn't see any floaters this morning.
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Re: Breeding Journal, Species: Thor amboinensis
Friday, February 14, 2014 8:19 AM
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Day 4, still look to be the same amount as when first collected, about 30. Stalked eyes now, so Z2.  
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Re: Breeding Journal, Species: Thor amboinensis
Monday, February 17, 2014 8:53 AM
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Re: Breeding Journal, Species: Thor amboinensis
Tuesday, February 25, 2014 8:34 AM
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Re: Breeding Journal, Species: Thor amboinensis
Friday, February 28, 2014 9:03 AM
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Re: Breeding Journal, Species: Thor amboinensis
Monday, March 3, 2014 12:39 PM
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Day 21 and two seem slightly larger than the others, have less than ten left. The adults also disappeared, thinking perhaps the gobies I put in that breeder basket either killed them or chased them out. But I haven't found them in the main tank, so I am guessing they were killed/eaten. I will have to get a few new adults. Anyway, here are the pics taken of one of the larger larvae:     I think the larger two are nearly ready to settle. Perhaps anyday now... 
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Re: Breeding Journal, Species: Thor amboinensis
Monday, March 3, 2014 1:25 PM
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too bad the adults disappeared.
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Re: Breeding Journal, Species: Thor amboinensis
Monday, March 3, 2014 1:26 PM
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I know  I wouldn't have thought green banded gobies would mind them, but I guess I was wrong. Now I know, at least
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Re: Breeding Journal, Species: Thor amboinensis
Monday, March 3, 2014 7:02 PM
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How many of us have paid dearly for each lesson learned the hard way about reef fish? Our failures could fill a volume. I've made at least my share.
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Re: Breeding Journal, Species: Thor amboinensis
Tuesday, March 11, 2014 3:09 PM
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Settlement!   Just one as of last night...hoping the other five will follow shortly.
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Re: Breeding Journal, Species: Thor amboinensis
Tuesday, March 11, 2014 6:48 PM
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Great news. In a few months you won't miss the adults so much. Especially when these guys breed.
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Re: Breeding Journal, Species: Thor amboinensis
Tuesday, March 11, 2014 10:05 PM
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I may get some replacement adults still...haven't decided yet. it will likely depend on how many of these actually make it to adulthood 
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Re: Breeding Journal, Species: Thor amboinensis
Friday, March 14, 2014 8:00 AM
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Four settled and one died. Last night I moved them to a mesh net breeder basket (they looked big enough) but today I only saw one in there....crap. I hope they are just hiding somewhere and didn't squeeze out! If there were more of them I would have dedicated a 10 gallon tank to them for grow out for awhile, but with only four...
In any case, the four are starting to get adult patterning. So cute!
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Re: Breeding Journal, Species: Thor amboinensis
Saturday, March 15, 2014 7:05 PM
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I got four replacement adults--three females and one male. They are in a breeder basket, but with no fish this time
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Re: Breeding Journal, Species: Thor amboinensis
Saturday, March 22, 2014 5:27 PM
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Good news! I saw some of the babies alive and well in the breeder basket. I thought they had escaped the basket and I lost them, but I saw three in there this morning so hooray! They pretty much look like mini adults now. I tried to get a pic, but wasn't able to get any good ones. I will have to try again soon.
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Re: Breeding Journal, Species: Thor amboinensis
Sunday, March 30, 2014 11:19 AM
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 Growing up so fast!
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Re: Breeding Journal, Species: Thor amboinensis
Tuesday, April 1, 2014 8:48 AM
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Had a hatch last night!  There were 20 in the snagger. I wish I was able to get a pic of the eggs, but I wasn't able to pull it off. There are three females and I suspect two (at least) have eggs because of a darker look to their pleopods when they are backlit, so I will continue to try for egg pics.
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